function sendContact(url) {
	var xmlhttp = null;
// code for Mozilla, etc.
	if (window.XMLHttpRequest) {
  		xmlhttp=new XMLHttpRequest();
  		xmlhttp.open("POST",url,true);
		xmlhttp.setRequestHeader('Content-Type','application/x-www-form-urlencoded');
		xmlhttp.send("aanhef="+document.getElementById('aanhef').value+"&voornaam="+document.getElementById('voornaam').value+"&achternaam="+document.getElementById('achternaam').value+"&email="+document.getElementById('email').value+"&adres="+document.getElementById('adres').value+"&postcode="+document.getElementById('postcode').value+"&plaats="+document.getElementById('plaats').value+"&opmerkingen="+document.getElementById('opmerkingen').value);
  		xmlhttp.onreadystatechange=	function state_Change() {
										// if xmlhttp shows "loaded"
										if (xmlhttp.readyState==4) {
											// if "OK"
											if (xmlhttp.status==200) { 
												var div_id = document.getElementById('contact_form');	
												div_id.innerHTML = xmlhttp.responseText;
												$('menu').tween('left', 253);
												$('background').tween('left', 253);
												setTimeout('$(\'holder\').tween(\'backgroundImage\', \'\')', 10);
												$('content_scroller').tween('opacity', 1, 0);
												$('content_scroller').tween('margin-left', -1800);
												$('content_scroller').tween('opacity', 0, 1);
											}
										}
							  		}
	}
// code for IE
	else if (window.ActiveXObject) {
  		xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
    	if (xmlhttp) {
    		xmlhttp.open("POST",url,true);
    		xmlhttp.setRequestHeader('Content-Type','application/x-www-form-urlencoded');
			xmlhttp.send("aanhef="+document.getElementById('aanhef').value+"&voornaam="+document.getElementById('voornaam').value+"&achternaam="+document.getElementById('achternaam').value+"&email="+document.getElementById('email').value+"&adres="+document.getElementById('adres').value+"&postcode="+document.getElementById('postcode').value+"&plaats="+document.getElementById('plaats').value+"&opmerkingen="+document.getElementById('opmerkingen').value);
   			xmlhttp.onreadystatechange=	function state_Change() {
											// if xmlhttp shows "loaded"
											if (xmlhttp.readyState==4) {
											// if "OK"
												if (xmlhttp.status==200) {
													var div_id = document.getElementById('contact_form');	
													div_id.innerHTML = xmlhttp.responseText;
													$('menu').tween('left', 253);
													$('background').tween('left', 253);
													setTimeout('$(\'holder\').tween(\'backgroundImage\', \'\')', 10);
													$('content_scroller').tween('opacity', 1, 0);
													$('content_scroller').tween('margin-left', -1800);
													$('content_scroller').tween('opacity', 0, 1);
												}
											}
										}
    	}
	}
}